How to use QQ to transfer picture video files to iphone under Win10 system

How to use QQ to transfer picture video files to iphone under Win10 system? The details are as follows:
1. Log in to the same account in iphone and win10 system, in the [Contact] tab of the QQ client in the computer. , find [my device] and expand, double-click to open “ my iPhone ;

2, click the bottom left corner “ select file to send & rdquo; button, as shown:

3, In the pop-up box, select the photo you want to transfer, click “open” to transfer to the QQ of the iphone;

4, click on the mobile QQ to send the message, open the image, click on the image, click “More” Then select “Save to phone”